Friday 3rd of July 2015 ~ 08:47:00 UTC (762) Pulcova occult TYC 1809-00447-1(mag 9.7)


  • Download the Google Earth File KMZ
  • green line is the central line of (762) Pulcova
  • blue lines show the estimate size of (762) Pulcova
  • red lines the 1-sigma error for the path
  • white lines show S/2000 (762) 1
Event
  • Max duration : 3.4 seconds
  • Mag drop : 4.2
  • Shadow velocity : 35.8 km/s
  • Ingress Earth : 2015-07-03 08:45:00
  • Egress Earth : 2015-07-03 08:49:00
  • Moon illumination : 98%
  • Moon phase : Full Moon
Asteroidal system
  • Name : (762) Pulcova
  • Mag : 13.9
  • Asteroid Diameter : 129 km
  • Geocentric distance : 3.763 AU
  • Number of satellite : 1
  • Satellite : S/2000 (762) 1 (Diameter : 20 km)
Occulted Star
  • Name : TYC 1809-00447-1
  • Used RA : 03:25:13.7498 J2000
  • Used DEC : +29:50:19.734 J2000
  • Mv : 9.7
  • VizieR - Aladin
Overview

Friday 3rd of July 2015, the double system (762) Pulcova will occult a 9.7 V magnitude Tycho star. The event will be observable from Canada, USA.

The satellite S/2000 (762) 1 was discovered in 2000 using the Canada-France-Hawaii Telescope by W.J. Merline et al.

For this event we have collected 10 observations of this satellite, between 2003 to 2006. All images were taken with adaptative optic system from Cerro Parranal and Mauna Kea. These observations span 1074 days or 260 revolutions. The mean accuracy of the orbital solution is 13 mas.

With a the high velocity of 36 km/s for the shadow, and an estimated diameter of 20 km for the satellite, the estimated maximum duration of the event is ~0.5 seconds. To ensure an accurate observation of the occultation by the satellite, we recommend to use an integration time of 0.1 second or less.

Clear skies

Historic
  • 2014-11-17 : Create prediction
  • 2015-06-29 : Updated prediction based on S. Preston path for the primary
Prediction for (762) Pulcova and S/2000 (762) 1 (wide views)

Pulcova

Pulcova

S/2000 (762) 1

S/2000 (762) 1

Ephemerides from IMCCE

Ephemeris for (762) Pulcova

Ephemeris for S/2000 (762) 1

Ephemeris from Miriade for the date of occultation and geocenter frame. For more specific ephemeris please use the documentation of Miriade.

Orbitography for the (762) Pulcova system

Astrometric observations centered on (762) Pulcova.
Dot represents one observed position. The vector shows ephemeris position from observed position.
Contents
  • Orbital solution fitted by Genoid project (Vachier F., Berthier J., Carry B. & M. Pajuelo) IMCCE/CNRS
  • Ephemeris has made available with Miriade Project (Berthier J. & Vachier F.) IMCCE/CNRS
  • Occultation Prediction by Vachier F. using Occult 4.1.5.2 (Occultation Prediction Software by D.Herald)
  • Ephemeris of the primary based on Asteroid Occultation Updates (Steve Preston)